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Numerical analysis of turbo-generator steam turbine energy efficiency and energy power losses change during the variation in developed power


Mrzljak, Vedran; Poljak, Igor; Prpić-Oršić, Jasna
Numerical analysis of turbo-generator steam turbine energy efficiency and energy power losses change during the variation in developed power // INTERNATIONAL SCIENTIFIC CONFERENCE MACHINES. TECHNOLOGIES. MATERIALS 2019 - winter session - Volume 1 - PROCEEDINGS / Popov, Georgi ; Dikova, Tsanka (ur.).
Sofia: Scientific technical union of mechanical engineering “Industry-4.0”, 2019. str. 22-25 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
Numerical analysis of turbo-generator steam turbine energy efficiency and energy power losses change during the variation in developed power

Autori
Mrzljak, Vedran ; Poljak, Igor ; Prpić-Oršić, Jasna

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
INTERNATIONAL SCIENTIFIC CONFERENCE MACHINES. TECHNOLOGIES. MATERIALS 2019 - winter session - Volume 1 - PROCEEDINGS / Popov, Georgi ; Dikova, Tsanka - Sofia : Scientific technical union of mechanical engineering “Industry-4.0”, 2019, 22-25

Skup
INTERNATIONAL SCIENTIFIC CONFERENCE MACHINES. TECHNOLOGIES. MATERIALS 2019 - winter session

Mjesto i datum
Borovets, Bugarska, 13-16.03.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Steam turbine ; Energy efficiency ; Energy power losses ; Power variation

Sažetak
Developed power variation of turbo-generator (TG) steam turbine allows insight into the change of turbine energy efficiency and energy power losses. Measurements were performed in five different TG steam turbine operating points and analysis is presented in three randomly selected operating points. Turbine developed power was varied from 500 kW until the maximum power of 3850 kW in steps of 100 kW. Turbine energy efficiency increases from 500 kW to 2700 kW and maximum energy efficiency was obtained at 70.13 % of maximum turbine power (at 2700 kW) in each operating point. From 2700 kW until the maximum of 3850 kW, TG turbine energy efficiency decreases. Change in TG turbine energy efficiency is caused by an uneven intensity of increase in turbine power and steam mass flow. For all observed operating points, energy efficiency during turbine exploitation is approximately 10 % or more lower than the maximum obtained one. A continuous increase in turbine energy power losses during the developed turbine power increase are the most influenced by the continuous increase in steam mass flow through the turbine.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Tehnologija prometa i transport



POVEZANOST RADA


Projekt / tema
IP-2018-01-3739

Ustanove
Tehnički fakultet, Rijeka,
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